PQ Corp
PQ CorpActive Patents
0
Total Holdings
17
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US5776242A | Silicate-dextrin clay adhesive compositions | Expired / Lapsed | 1996-11-04 | 1998-07-07 | 14 | Details |
| US5571316A | Silicate-dextrin adhesive compositions | Expired / Lapsed | 1996-02-28 | 1996-11-05 | 9 | Details |
| US4549892A | Process for producing hollow, bilayered silicate microspher… | Expired / Lapsed | 1982-09-22 | 1985-10-29 | 18 | Details |
| US4540629A | Hollow microspheres with organosilicon-silicate walls | Expired / Lapsed | 1984-02-27 | 1985-09-10 | 24 | Details |
| US4421562A | Manufacturing process for hollow microspheres | Expired / Lapsed | 1983-03-23 | 1983-12-20 | 10 | Details |
| US4420442A | Manufacturing process for hollow microspheres | Expired / Lapsed | 1982-09-21 | 1983-12-13 | 9 | Details |
| US4379143A | Topical liquid or ointment | Expired / Lapsed | 1982-02-01 | 1983-04-05 | 14 | Details |
| US4340642A | Surface modified hollow microspheres | Expired / Lapsed | 1980-06-20 | 1982-07-20 | 7 | Details |
| US3960583A | Method of preparing modified hollow, largely spherical part… | Expired / Lapsed | 1974-05-02 | 1976-06-01 | 25 | Details |
| US3888957A | Method of making hollow spheres by spray drying | Expired / Lapsed | 1972-03-17 | 1975-06-10 | 18 | Details |
| US3796777A | Method of making hollow spheres by spray drying | Expired / Lapsed | 1972-02-03 | 1974-03-12 | 0 | Details |
| US3794475A | Method of preparing soluble silicate flakes or fibers | Expired / Lapsed | 1973-04-18 | 1974-02-26 | 0 | Details |
| US3794503A | Hollow spheres consisting of alkali metal silicate and a po… | Expired / Lapsed | 1972-05-12 | 1974-02-26 | 0 | Details |
| US3475185A | Alkali metal silicate binder for zinc-rich paints | Expired / Lapsed | 1967-08-04 | 1969-10-28 | 0 | Details |
| US3466221A | Expanded silicate insulation | Expired / Lapsed | 1966-04-05 | 1969-09-09 | 0 | Details |
| US2649388A | Manufacture of silica filled materials | Expired / Lapsed | 1948-08-24 | 1953-08-18 | 2 | Details |
| US2284248A | Manufacture of shaped particles of hydrous alkali metal sil… | Expired / Lapsed | 1939-02-16 | 1942-05-26 | 0 | Details |